Estimate the height of various objects by creating a 45° right triangle with a known base.Measure angles and estimate angles using a protractor.Measure distances by using a ruler, yardstick or ultrasonic sensor.When surveying land, engineers apply the principles of geometry, since they cannot measure several miles directly with a ruler or tape measure! This activity helps students see the power of trigonometry to make useful estimates in everyday life, and exposes them to some modern technologies that engineers use to make measurements.Īfter this activity, students should be able to: ![]() To do this, they use the principles of trigonometry and geometry to measure or estimate the dimensions of objects on the site. In addition, civil engineers sometimes perform surveying on construction sites to determine property lines on land. Often, they double check their designs by making estimates to verify that the calculations are reasonable. ![]() When designing these objects and structures, engineers must provide precise measurements to make sure everything fits together. Civil engineers design buildings and bridges using basic shapes such as triangles and squares. For example, mechanical engineers use triangles in some parts of car designs to produce frames that are lightweight and strong. Many engineers use trigonometry and geometry in their work, designing structures and objects that function well together. By activity end, students have a better grasp of trigonometry and its everyday applications. Finally, students synthesize their knowledge by applying it to solve similar problems. Students discover that they can use this method to estimate the height of buildings, trees or other tall objects. Students measure the height of the objects using the LEGO robot kit, giving them an opportunity to see how sensors and technology can be used to measure things on a larger scale. Then, they estimate the height of various objects by using simple trigonometry. First they review fundamental geometrical and trigonometric concepts. ![]() Students learn about trigonometry, geometry and measurements while participating in a hands-on interaction with LEGO® MINDSTORMS® EV3 technology. Making GPS Art: Draw It, Walk It, Log It, Display It! Navigational Techniques by Land, Sea, Air and Space Triangulate: Topos, Compasses and Triangles, Oh My! Northward Ho! Create and Use Simple CompassesĪccuracy, Precision and Errors in Navigation: Getting It Right!Ĭlose Enough? Angles & Accuracy of Measurement in Navigation
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